Valve lifter



March 25 1924. 1,488,400

' v A. R. MCCANTS ET AL VALVE LIFTER Filed May 3f 1923 Patented Mar. 25, 1924.

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SHREVEPORT,

VALVE LIFTER.

Application filed May 3,

To all whom it may concern:

Be it known that we, Anvil ROBERT Mc- CAN'rs and ALEXANDER JACKSON CORNETT,

citizens of the United States, residing at 8 Shreveport, intheparish of Caddo and State of Louisiana, have invented certain new and useful Improvements in Valve Lifters; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to improvements in valve spring lifters in which provision is made for compressing valve springs on automobile or other motors whenever the valves are to be ground or the valves, valve spring or other parts are to be replaced.

An object of the invention is to provide an improved tool which will afford ease and convenience in the compressing of the valve spring to the end that the lock may be pulled out freely.

Another object of the invention resides in providing an improved valve spring lifter or compressor in which the parts will be so constructed and arranged as to make the device adaptable for substantially all of the motors of different makes now in existence 80 and the device consists in an improved lever peculiarly constructed to embrace the lower part of the spring and the spring collar and to embrace a number of the convolutions of the springs not only in a circumferential but also in an axial direction without interfering with the movement of the lever but affording a better purchase upon the spring.

lVith the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views,

Figure 1 is a fragmentary end View of I the motor with the head removed and showing the improved implement in place.

Figure 2 is a similar view showing a subsequent position of the lever with the spring compressed, and

Figure 3 is a perspective view of the improved device.

Referring more particularly to the draw- 1923. Serial No. 636,400.

ings, the device consists of a lever having an elongated shank 4 tapering toward its handle portion by which it is gripped in the hand of the operator during the act of compressing the valve spring which is indicated at 2 and which surrounds the valve stem 3 in the usual way.

The valve spring is supported at its lower end by a collar 7 which takes against a locking pin or washer 8 extending through or interlocking with the lower end of the valve stem 6. The motor block is indicated at 9 and the head bolts 10 are shown as projecting upwardly therefrom and the head is removed which is required when grinding the valves and removing the carbon.

The lever {t is provided with a head 5 at its working end, which end is enlarged by virtue of the taper given the shank and this head 5 is substantially semicircular in form and extends in substantialalignment with the plane of the handle 4. The inner semicircular wall 6 of the head is'of a contour corresponding generally to the curvature of the coil spring 5, the radius on which the are 6 is struck being slightly greater than radii of the coil spring 5 in order to effect a cer- 'tain loosenessin the fit of the lever upon the spring as is desirable in securing a free movement of the lever from the posit on shown 1n Figure l to that mdicated in Figure 2. Figure 1 and Figure 2 are com parative views in this respect and they show substantially the are described by the lever from its initial to its final movement in compressing the spring 5 and in freeing the collar 7 from the locking part 8.

The semicircular arms of the head carry at their outer free ends depending lugs 11 and 12 of an elongated character which project at substantially right angles to the plane of the head 5 and to the plane of the handle and such lugs carry inwardly pro jecting flanges 13 and 14 having inner edges 15 of a beveled character in which the bevelv takes place from the upper inner edge downwardly and outwardly. The lugs 13 and 14 are adapted to engage beneath diametrically opposite points upon the spring collar 7 and enable the lever to obtain a purchase thereon and the beveled character of the edges 15 facilitates the engagement of the tool beneath said valve collar and they assist in prying the collar up from the locking element 8. The lugs 11 and 12 extend for a or tens on o considerable distance axially along the col spring 5 and relativ v small upper face of the lugs and l lenable the d be chanced in ace-create Th e cha i o.

to have co 1 thus ready for us simply slipping the head bolt lever will then with respect to t tion "further cha to the hook 1S ard l have link which will lengthen 1. chain and i'nake the device adaptable use in connection with other larger motors. Any ber oi further links may be rdded and the r e shown one such linl 1-i9 may be p" :Vfii'llid from cscapins through the open mouth oi the hook 18 as by a bead 20 upon said hoox 18. ditional link 19 has a loop fitting over the hea bolt of the tor. In such case the hook 18 is not engaged with the head bolt, but forms merely a the chain.

In the use of the device the hook or other part of the chain is engaged with a head bolt 1.0 of the motor and the head of the lever is engaged beneath a spring collar and sprin as shown in Figure l. The ifilcrum loop 1 is shifted to a convenient position and the weight o" the operator is put upon the hair dle 5 causing the leverto assume the position, shown in Figure 2 which results in the cornpressing of the spring the spring collar. The locking element 8 iiiav be then removed I? 7 c ELI E 4. y a and E116 valve may be lllLQCL it without any interference from the spring.

It will. be appreciated that due to the truction t the lever, the greatest ed character the lugs 11 and 12 and the relatively hi h position at which the head engages the coil spring, a substantial part spring will be embraced in the device lever will not be apt to get in becoiivoliitions of the spring nor to sidewise orbeneath the collar 7; iinple and inexpensive and may carried about in a substantially spa. is obvious that various changes and 1 ications may lein \hc detailso'f construction and design oi the z-tbcve specifidescribed eiribodirnent of this invena avithout departing from the spirit there .,.ch. changes and modifications being rec of the following having an enlarged ar inner wall adapt five spring, lugs proilljltlily right angles down 1 es projecting inwardly toward one another and having relatively small upareas with beveled inner edges and means to upport said lever and to provide a tuls cram therefor.

a it valve spring lii'ter comprising a lever composed of an elongated and tapering handle having its smaller end outlnost and provided at its larger end with a head having a semicircular inner Wall sli htly greater than the cylindrical valve spring, lugs depending at substantially right angles from the plane of said head and said handlle and being elongated to space the head well above the base of the valve spring, said logs ARVE ROBERT molars ALEXANDER messes CORNETT.

1' free ends of the semicir said lugs being elongated and 

